Supreme Court Justice Ketanji Brown Jackson is glued to her soapbox.

In Monday’s oral argument in the case of Trump v. Slaughter, Jackson delivered an impassioned rant defending America’s unelected expert class. The case, brought by Rebecca Slaughter, concerns a federal law that cripples the president’s ability to fire members of the Federal Trade Commission (FTC). President Donald Trump appointed Slaughter, a Democrat, to the FTC in 2018. She was removed from the commission in March.